Use this frosting to frost this Fresh Orange Layer Cake!
Yield: Enough for one 2-layer cake
Prep Time: 10 min
1/2 cup (1 stick) salted butter, softened
2 teaspoons grated orange zest
1/8 teaspoon salt
1 large egg yolk
1 box (1 pound) powdered sugar
1/4 cup freshly squeezed orange juice
Use an electric mixer to combine the butter, zest, salt and egg yolk in a medium bowl. Add the sugar alternately with orange juice beating until of spreading consistency.